到目前为止,我已经下载了来文方,安装了附属设施,并适当确定了我的描述环境文件。

这里的背景是:

# This file will be copied to ~/.emscripten if that file doesn t exist. Or, this is     that copy.
# IMPORTANT: Edit the *copy* with the right paths!

#EMSCRIPTEN_ROOT = os.path.expanduser( ~/Dev/emscripten ) # this helps projects using emscripten find it
EMSCRIPTEN_ROOT = os.path.expanduser( ~/softwares/kripken-emscripten-12e45ea )

#LLVM_ROOT = os.path.expanduser( ~/Dev/llvm-3.0/cbuild/bin )
LLVM_ROOT = os.path.expanduser( /usr/bin )

# See below for notes on which JS engine(s) you need
NODE_JS =  node 
SPIDERMONKEY_ENGINE = [os.path.expanduser( ~/Dev/mozilla-central/js/src/js ),  -m ,  -n ]
V8_ENGINE = os.path.expanduser( ~/Dev/v8/d8 )

TEMP_DIR =  /tmp 


########################################################################################################


# Pick the JS engine to use for running the compiler. This engine must exist, or
# nothing can be compiled.
#
# Recommendation: If you already have node installed, use that. Otherwise, build v8 or
#                 spidermonkey from source. Any of these three is fine, as long as it s
#                 a recent version (especially for v8 and spidermonkey).

COMPILER_ENGINE = NODE_JS
#COMPILER_ENGINE = V8_ENGINE
#COMPILER_ENGINE = SPIDERMONKEY_ENGINE


# All JS engines to use when running the automatic tests. Not all the engines in this list
# must exist (if they don t, they will be skipped in the test runner).
#
# Recommendation: If you already have node installed, use that. If you can, also build
#                 spidermonkey from source as well to get more test coverage (node can t
#                 run all the tests due to node issue 1669). v8 is currently not recommended
#                 here because of v8 issue 1822.

JS_ENGINES = [NODE_JS, SPIDERMONKEY_ENGINE]

但是,当我参加一项试验方案时,该试验方案位于指挥的测试目录中:

./emcc tests/hello_world.cpp

我正在犯错误:

error: unknown argument:  -nostdsysteminc 
emcc: compiler frontend failed to generate LLVM bitcode, halting

我无法理解为何出现这一错误。